XRG provided crucial engineering expertise in the scale-up of a client’s unique patented gasification process for its first full-scale commercial implementation at a greenfield waste-to-energy plant in Oregon.
The Problem: The customer had a patented process that was designed to convert biomass into syngas that will be further converted into high-quality renewable liquid fuels. This process forms the heart of a new biorefinery that will convert 136,000 tons/year of waste woody biomass into 15.1 million gallons/year of renewable fuels for the civil aviation industry. Early in the engineering of this first full scale system, they encountered challenges with supplying the necessary heat to drive the pyrolysis reaction.
The Solution: XRG developed a novel method to transfer the heat for pyrolysis into the biomass feedstock while achieving the required residence time and temperature uniformity in the reactor vessel. A combination of external heating and a heated recycle of the process stream was required to successfully achieve the heat transfer needed for pyrolyzing of the biomass feedstock. XRG performed steady-state and transient CFD models to optimize the reactor geometry, the heat transfer into the biomass feedstock particles, and the overall material temperature uniformity of the high-alloy reactor vessel.
This highly customized system, including the design and supply of an 81 MMBtu/h vertical cylindrical recycle gas heater and the detailed engineering analysis of the biomass pyrolysis system, is a testament to our specialized competencies.


XRG Technologies
1855 E 15th Street
Tulsa, OK 74104
info@xrgtechnologies.com
+1 918-201-2656